Internet环境下漫游系统中的视点控制技术

在研究了基于Web的虚拟真实漫游系统的应用前景的基础上,利用VRML的网络特性以及内置接口语言Java和JavaScript,对系统中的视点绑定、视点动画交互等关键技术进行了详细的阐述,并给出了相应的VRML程序。     

纺织机械零件CAPP技术的应用研究

要提高产品的竞争能力，必须在企业中加大CAPP的应用力度，笔者通过应用思普CAPP系统（SIPM/CAPP）编制纺织机械零件工艺文件的实践，证明了在企业中应用CAPP是提高产品的市场竞争能力，提高企业工艺快速反应能力的有力工具。     

智能混合控制在高速纸机的应用

介绍了压力式网前箱的建模和控制，并通过构造一个新的控制器结构-智能混合控制器，将Fuzzy和PID控制融于其中。     

WATCHDOG在汽轮发电机组状态监测系统中的应用

本文介绍一种适合于汽轮发电机组状态监测系统的“看门狗”功能,它可以在很短时间内发现由于外界干扰而导致的计算机的锁死,并马上自动使计算机恢复正常运行。从而提高在线状态监测系统的可靠性。     

卷轴式贴标签机剥离机构的优化设计

探讨了用解析的方法解决压敏标签贴标签机的剥离刀口的优化设计问题，分别提出了剥离刀口处的张力功、摩擦功、弹塑性变形功和剥离功的计算模型，并对结果进行了讨论，结果表明，剥离刀口的曲率半径存在一个最优值，此值分别与纸带预张力、压敏胶的特性、标签的瞬时剥离宽度、底纸带特性等有关。     

基于虚拟仪器技术的多线程数据采集系统

本文论述了如何利用虚拟仪器技术以及多线程技术来进行数据采集，并介绍了在工业中的实际应用。     

Carnot comparison of multi-temperature level absorption heat cycles

Comparison of different absorption heat cycles is not always made on the correct manner. This also includes comparison of an ideal absorption cycle with a mechanical analogy. A new Carnot model operating with two heat engines and two mechanical heat pumps is defined to be the correct and logical way to describe the mechanical analogy for an absorption heat pump and an absorption heat transformer. General equations for the Carnot coefficient of performance, COP_r, are exemplified and simulated for an absorption heat pump and an absorption heat transformer, and an entropy flow fraction diagram is introduced. The important fact that the absorption heat cycles must operate under the same conditions when they are compared is discussed.     

半导体元件清洗技术浅谈

随着社会的进步和科学技术的迅猛发展,对洗净技术的要求也越来越高。清洗方式多种多样,但最主要的是突出在喷射清洗和超声波清洗两大方面,应用于全国各行各业,并且也得到了明显进步。     

Complementary modelling of fluid separation processes

Optimal functioning of numerous technological processes depends primarily on relevant process design, properly selected column internals and sufficient understanding of the process behaviour. This can be achieved only with the help of accurate and reliable process models capable of considering process rates in a rigorous way, with respect to both transport phenomena and chemistry. In this article, a new modelling concept called complementary modelling is suggested for a large class of fluid separation processes. Since the conditions and criteria for these processes vary considerably, it is impossible to develop a unified modelling approach. Instead, a reasonable and effective combination of different modelling approaches provides solutions to many present and future tasks. The complementary modelling is discussed in detail and illustrated with several case studies.     

A quantitative analysis of the effectiveness of laparascopy and endoscopy virtual reality simulators

The increasing use of virtual reality (VR) simulators in surgical training makes it imperative that definitive studies be performed to assess their training effectiveness. Indeed in this paper we report the meta-analysis of the efficacy of virtual reality simulators in (1) the transference of skills from the simulator training environment to the operating room and (2) their ability to discriminate between the experience levels of its users. The task completion time and the error score were the two study outcomes collated and analyzed in this meta-analysis. Sixteen studies were identified from a computer-based literature search (1996-2004). The meta-analysis of the random-effects model (because of the heterogeneity of the data) revealed that training on virtual reality simulators did lessen the time taken to complete a given surgical task as also clearly differentiate between the experienced and the novice trainees. Meta-analytic studies such as the one reported here would be very helpful in the planning and setting up of surgical training programs and for the establishment of reference ‘learning curves’ for a specific simulator and surgical task. If any such programs already exist they can then indicate the improvements to be made in the simulator used such as providing for more variety in their case scenarios based on the state and/or rate of learning of the trainee.